This was reported by one of our visually impaired users on OTRS.
> I am a technically blind person with just ufficient sight to be able to read my ipad. I make extensive use of Wikipedia and happily make a small monthly conribution to your organisation. I am able to read more easily with the Wikipedia app set to a black background and white print. However, the links within articles (hyperlinks, I think they are called) remain in a sort of royal blue and are not contrasty enough to be legible for those of us who are visually impaired.
> Is there any possibility that the link colouring could be made customisable or even to change the colour to a more contrasty one?
> I look forward to your keeping up your excellent work.
====1. Update link color on //black mode// to #3E71D6
In order to achieve WCAG AA compliance against both the primary text color (`#FFF`) and the background (`#000`) we need to update the current blue link color on //black mode// to `#3E71D6`. Unfortunately, this new color is not WCAG AA compatible with the //dark mode// background color (`#2E3136`) so we will keep the current blue link color on dark mode (`#69F`) and //dark mode// like //sepia mode// will not be WCAG compliant across text and background colors. The purpose of the two non WCAG compliant modes (//dark// and //sepia//) will continue to be to provide a low contrast theme for users who have blue light sensitivity.
====2. Underline links when iOS high contrast setting is detected
If a user has the iOS high contrast setting set on their device, we would like to be able to add an underline to links in the article view.